Cervical Plexus and Nerves Flashcards Preview

Nero Exam #1 > Cervical Plexus and Nerves > Flashcards

Flashcards in Cervical Plexus and Nerves Deck (34)
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1
Q

superficial branches of cervical plexus

A

nerves C2-4

sensory fibers to the skin of posterolateral aspect of head and neck, ant. neck, and upper chest and shoulders

2
Q

lesser occipital n

A

C2-3

3
Q

great auricular n

A

C2-3

4
Q

transverse cervical n

A

C2-3

5
Q

supraclavicualr n

A

C3-4

6
Q

ansa cervicalis

A

ant. rami of C1-3
superior root (C1-2) - hypoglossal n.
inferior root (C2-3)
inn all of the infrahoid m.

7
Q

phrenic n.

A

C3-5

descends superficial to the ant. scalene mm

8
Q

brachial plexus

A

C5-T1

compressed by ant. scalene mm

9
Q

general somatic afferent (GSA)

A

inn ectodermal origin
convey pain, temp, tactile, pressure, and proprioception
sharp local pain

10
Q

general visceral afferent (GVA)

A

inn endodermal origin
fibers convey visceral pain (stretch, ischemia) and reflexes
dull ache, throbbing, non local pain

11
Q

general somatic efferent (GSE)

A

inn mm of myotomic origin (tongue and extra ocular mm)

12
Q

general visceral efferent (GVE)

A

associated with the sympathetic (thoraco-lumbar) and parasympathetic (carino-sacral) divisions of the ANS
NO PREganglionic parasympathetic fibers in any spinal n

13
Q

trigeminal sensory nuclei (GSA)

A

sensory nucleus for all sensations
all GSA fibers from cranial n V, VII, IX, and X
includes 3 nuclei: mesencephalic nucleus of V, main sensory nucleus of V, and descending nucleus of V

14
Q

solitary nucleus (SVA and GVA)

A

sensory nucleus for general sensation from the posterior 1/3 of the tongue to the mid portion of the transverse colon
all GVA and SVA (tase) fibers

15
Q

oculomotor nucleus

A

inn superior, inferior, and medial recti, inferior oblique, and the levator palperbae superioris mm via branches of the oculomotor n

16
Q

trochlear nucleus (IV)

A

inn the superior oblique mm

17
Q

abducens nucleus (VI)

A

inn the lateral rectus mm

18
Q

hypoglossal nucleus (XII)

A

inn all of the mm associated w/ the tongue, except palatoglosssus

19
Q

edinger-westphal nucleus

A

PRE - oculomotor n
Ciliary ganglion
POST - ciliary m of the lens and the pupillary constrictor m

20
Q

superior salivatory nucleus (VII)

A

PRE - 2 ganglion
Sphenoplalatine ganglion - lacrimal gland and oral and nasal cavities
submandibular ganglion - submandibular and sublingual salivary glands

21
Q

inferior salivatory nucleus (IX)

A

otic ganglion - parotid salivary gland

22
Q

dorsal motor nucleus (X)

A

PRE - ganglia in larynx, pharynx, thorax, and abdomen

POST - various glands and smooth m in region

23
Q

SVE column

A

inn mm derived from mesencyme of brachial arches

24
Q

glossopharyngeal n (IX) lesion

A

loss og gag reflex
slight dysphagia
loss of sensation in pharynx and posterior 1/3 of tongue

25
Q

vagus n (X) lesion

A

dysphonia
dysphagia
dyspnea
loss of gag or laryngeal couch reflex

26
Q

accessory nerves

A

unilateral lesions of the spinal accessory n result in an ipsilateral inability to shrug the shoulder and flex and rotate the head

27
Q

hypoglossal n lesion

A

deviation of the protruded tongue towards the affected side

28
Q

mesencephalic nucleus of V

A

proprioception information from the facial m

29
Q

main sensory nucleus of V

A

precise tactile discrimination of information from the face

30
Q

descending nucleus of V

A

crude tactile pain, temp information from the face

31
Q

trigeminal motor nucleus

A

inn mm of mastication, tensor palati, tensor tympani, mylophyoid, ant digastric

32
Q

facial motor nucleus

A

inn mm of facial expression, stylohyoid, stapedius, and posterior digastric

33
Q

nuclues ambiguus

A

inn sytlopharyngenus, platoglossus, and mm of the palate, larynx and pharynx

34
Q

accessory nuclues

A

inn SCM and trap